[  519.135546] bond0: (slave eth0): making interface the new active one
[  519.135636] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.362879] bond0: (slave eth0): Releasing backup interface
[  523.477035] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.710404] bond0: (slave eth0): Releasing backup interface
[  527.738293] bond0 (unregistering): Released all slaves